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southbridge/hudson: Use MMIO instead of PIO to access PM space

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The MMIO region is set up by AGESA very early on, so we can use it to
access the PM register space in ramstage. 16-bit accessors are also
provided to simplify some setup tasks. 16-bit accesses are not
possible via PIO.
The pm2_iowrite/read accessors are removed, as they are not used.

Change-Id: Ie7967b5086eb004525c39721338c6495aedc8165
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5503
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
This commit is contained in:
Alexandru Gagniuc
2014-04-14 16:44:19 -05:00
parent f3e82f7969
commit 342ac64a5d
9 changed files with 62 additions and 81 deletions
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8
src/mainboard/amd/parmer/mptable.c
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@@ -96,10 +96,10 @@ static void *smp_write_config_table(void *v)
/* I/O APICs: APIC ID Version State Address */
dword = 0;
dword = pm_ioread(0x34) & 0xF0;
dword |= (pm_ioread(0x35) & 0xFF) << 8;
dword |= (pm_ioread(0x36) & 0xFF) << 16;
dword |= (pm_ioread(0x37) & 0xFF) << 24;
dword = pm_read8(0x34) & 0xF0;
dword |= (pm_read8(0x35) & 0xFF) << 8;
dword |= (pm_read8(0x36) & 0xFF) << 16;
dword |= (pm_read8(0x37) & 0xFF) << 24;
/* Set IO APIC ID onto IO_APIC_ID */
write32 (dword, 0x00);
write32 (dword + 0x10, IO_APIC_ID << 24);